1: (0 1 5)

(0)(1 20 5 8 6 4 3)(2 15 13 10 7)(9 12 11)(14 18 16)(17 21 19)

2: (5 8 20)

(0)(1 20 6 4 3)(2 15 13 10 7)(5)(8)(9 12 11)(14 18 16)(17 21 19)

3: (2 15 7)

(0)(1 20 6 4 3)(2)(5)(7 13 10)(8)(9 12 11)(14 18 16)(15)(17 21 19)

4: (4 20 6)

(0)(1 20 3)(2)(4)(5)(6)(7 13 10)(8)(9 12 11)(14 18 16)(15)(17 21 19)